TITANIC: Pull assert out of dvector/fvector normalization

Before the normalization function was asserting if it couldn't
normalize now the caller can determine what to do with a failed
normalization.

1 files changed, 12 insertions, 4 deletions

diff --git a/engines/titanic/star_control/camera_auto_mover.cpp b/engines/titanic/star_control/camera_auto_mover.cpp
index 861248fc1f..bcb94d27c2 100644
--- a/engines/titanic/star_control/camera_auto_mover.cpp
+++ b/engines/titanic/star_control/camera_auto_mover.cpp
@@ -49,8 +49,12 @@ void CCameraAutoMover::proc2(const FVector &oldPos, const FVector &newPos,
 	_srcPos = oldPos;
 	_destPos = newPos;
 	_posDelta = _destPos - _srcPos;
-	_distance = _posDelta.normalize();
-
+       float temp = 0.0;
+	if (!_posDelta.normalize(temp)) { // Do the normalization, put the scale amount in temp,
+                                         // but if it is unsuccessful, crash
+              assert(temp);
+       }
+       _distance = temp;
 	_active = false;
 	_field34 = false;
 	_transitionPercent = 1.0;
@@ -73,8 +77,12 @@ void CCameraAutoMover::setPath(const FVector &srcV, const FVector &destV, const
 	_srcPos = srcV;
 	_destPos = destV;
 	_posDelta = _destPos - _srcPos;
-	_distance = _posDelta.normalize();
-
+       float temp = 0.0;
+	if (!_posDelta.normalize(temp)) { // Do the normalization, put the scale amount in temp,
+                                         // but if it is unsuccessful, crash
+              assert(temp);
+       }
+       _distance = temp;
 	_active = false;
 	_field34 = false;
 	_field40 = -1;